Yangfan Mini Stereo AMP Audio Amplify Board Digital Portable Ampli Module 10W+10W Dual Channel Amplifier Class-D 12V DC Amplifier for PC Speaker Car Auto Motor Automotive Vehicle Motorcycle With LED power supply indicator, power supply switch and mute switch, easy to operate. Adopts PAM8610 chip, no filter, low static current, EMI, power consumption and heat generating. Operating voltage: DC7.5-15V, recommended power supply: DC12V. With 5.5 DC outlet as power supply interface; high efficiency of 90%. With over-current, temperature, short-circuit protection, hence safe for use.